Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 COMPANY OVERVIEW MESAR S.r.l., estabilished in 1986, works in the field of the design and manufacturing of electronic equipments, in power conversion, data transmission and integrate supply fields. Our products find applications both in the terrestrial field, naval, avionic and railway, both civil and military versions. Technologies are highly innovative, they come from collaborations with research institutes, universities and international companies. Ing. FAGGIONI, member of the committee IEC and CENELEC for the standardization of the products in power supply area. Mesar is composed of experts coming from well know Companies as Contraves, Elettronica, Mes, Selenia, Pulsar etc., with great experience in the field of the scientific search and development. The company is located in an industrial area of 3000m2, close to the National Road Tiburtina, nearby Tivoli and Villa Adriana. Today mesar is composed of 52 employees: - Management Marketing Administration 1 3 2 - Production R&D Quality assurance 22 22 2 Mesar’s main customers: o o o o o o SELEX SI MBDA DATAMAT OTO MELARA GALILEO EUROSYSNAV o o o o o o AVIOLACO IAS (CNR) ATTIVITA’ SPAZIALI SELEX – COM CISDEG VITROCISET RHEIMETALL ITALIA 2 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 INTRODUCTION MESAR S.r.l. an Italian company located in Tivoli nearby Rome is since 1986 active in the field of production for all kinds of electric and electronic parts and devices for Military and Civil Applications. Navy, Air force, Army, Air traffic Control, Railways. MESAR also offers a wide range of after sales service, support and assistance to the customer such as, among others: repairs of electromechanical and electronic devices of highly sophisticated technological contents including overhauling of UPS, generators, inverters, converters, power stations. 1986. Fabrizio Faggioni and Carla Corbani founded MESAR S.r.l. 1989. First collaboration with ENEA (Alternative Energies Italian Agency). 1992. Mesar realised the first static converter for railway application. 1993 Mesar became part of the companies cooperating with the Ministry of University , technological & research dept. 1995. Mesar started developing a multivoltage battery chargers. 1996. Italian Navy qualified Mesar as Supplier for converters devices 1997 Italian Ministry of Defence assigned a NATO code to Mesar (A8746) 1999. Mesar produced a water cooled AC/DC Converters for INFN Linear Technology. 1998. Mesar is qualified ISO 9001, 1998. Mesar has been qualified as RF and power conversion official supplier by a Finmeccanica Company. 1999. Mesar produced air cooled AC/DC Converters for INFN Switching Technology. 1999 Italian Navy qualified Mesar as Supplier for Electric & Electronics military devices 3 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 2000. Trenitalia (Italian Railway Agency) qualified Mesar as “Static converter official supplier”. 2001. Mesar opened a second workshop in Tivoli, the covered area grows up to 2000 m2 2002 Mesar obtained a Quality qualification from Italian Navy 2003 Contract with Indian Air Force for the supply of Fiber Optic Radar data link for 20+20 military Airports. Has been awarder to Mesar 2004. The high efficiency power converter (>94%) on service, Mesar award a fund for high innovative products from E.U. 2005 RAI (Italian Television network Agency) qualified Mesar as Supplier for converters 2006. The Mesar obtained ISO 14001. 2007. Mesar participated to the upgrading of N. 6 FREGATES “Maestrale” Class and N. 2 Antiaircraft Battle Ships “DDG” Class for Italian Navy. 2007. Ansaldo Breda qualified Mesar as “Static converter official supplier”. 2007. Mesar has been appointed by EUROPEAN COMMISSION as official Supplier. 2007. The Mesar starts the construction of the new Factory, the covered area will grow up to 7000 m2 2008 Mesar has been qualified by RFI (State owned Organization for Railways) 4 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 In the last years Mesar designed and produced for the Italian and international Customers different kinds of equipment with innovative solutions and state of the art technology. Mesar equipment are characterized from robustness and high reliability, typical requirement of the military and civil applications. Mesar proposal is characterized by: More than 20 years of experience Advanced technical solutions State of the Art High performances High efficiency High reliability Field proven equipment Fully Compliant with NATO Military Standards After Sales Support 5 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 INTEGRATED SYSTEMS - Power conversion systems for Raylwais & Rolling Stock - Military Systems for Navy, Army and Air Force - Air Traffic control Systems ACTIVITIES - Production - Site survey - Project Management - Programs Management - Contract Management - Installation - Commissioning - Factory & Site Acceptance tests - Repair - Logistics - Maintenance - Training - Upgrading - Revamping 6 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 CONTROL TOWER FOR NAPOLI HARBOUR 7 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 NON - DIRECTIONAL BEACON Installation and maintenance 8 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 CONSOLES PM396 OPERATING CONSOLE NAVY WEAPON SYSTEMS CONTROL UNIT INCLUDES: - VME COMPUTER ACQUISITION CARDS HD, CD-ROM FDDI / LAN COMUNICATION TWO KEYBOARDS (ONE MULTIFUNCTIONAL) TRACK – BALL LCD DISPLAY POWER POWER ASSURED BY UPS PDU FOR: POWER CONTROL FAN CONTROL DC SERVICE POWER 9 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 MULTI OPERATORS DISTRIBUTED INTELLIGENCE PHILOSOPHY ATC CONSOLES: - COMPUTERS LARGE SCREEN HIGH RESOLUTION COLOR DISPLAY Communication Systems VCCS GPS TIME CODE GENERATORS NAVIGATION AIDS (ADF, GONIO) Ground to Air Communication METEREOLOGICAL Stations MESAR is able to integrate a full Air traffic Control Centres composed of different kind of equipment including Control Towers and Navigational AIDS 10 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 REMOTE CONTROL SYSTEM FOR COMPUTER INTERCONNECTION CONSOLES SYSTEM PM258 – PM 259 COMPUTER LOCAL – REMOTE SWITCHING SYSTEM WITH HIGH DEFINITION VIDEO CAPABILITY THE SYSTEM ALLOWS TO SWITCH LOCAL – REMOTE WORK STATION (MAX 100mt FOR 2KX2K VIDEO DEFINITION) OPERATIVE SYSTEMS: - UNIX WINDOWS THE SYSTEM CAN REMOTE: - VIDEO (2000X2000) KEYBOARD AUDIO (2 CHANNEL) RS232 AVOIDING FANS NOISE AND HEATING DUE TO THE PRESENCE OF COMPUTERS IN THE CONTROL ROOM 11 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 MINI RADAR DISPLAY UNIT PM292B - ROUTING 4 GROUPS OF RADAR VIDEO AND ANGOLAR SIGNALS - REMOTE AND LOCAL CONTROL - INTERNAL TEST SIGNAL GENERATOR - COMPACT SIZE - BARCO® RADAR SCAN CONVERTER COMPATIBLE INTERFACE - FRONT PANEL LOCAL TEST POINT OUTPUTS - 19” RACK MOUNTING THE MESAR PM292B MINI RDU UNIT IS A VERY VERSATILE EQUIPMENT THAT IS ABLE TO ROUTE UP TO FOUR RADAR CHANNEL TO VIDEO PROCESSOR FOR DISPLAY MANAGEMENT. EACH RADAR CHANNEL IS MADE BY 4 ANALOG VIDEO SIGNALS AND 3 DIGITAL SIGNALS (ACP, TRIGGER AND NORTH PULSE). THE PM292B ALSO HAS A TEST SIGNAL SYNTHESIZER, WICH CAN HELP THE USER FOR EQUIPMENT AND CONNECTIONS TESTING. THE SELECTION BETWEEN THE DIFFERENT SIGNAL SOURCE CAN BE MADE THROUGHT FRONT PANEL SWITCH, OR BY REMOTE CONTROLLING. 12 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 COMMUNICATIONS, CODIFICATION, CODE CONVERSION, STANDARD & SPECIAL PROTOCOLS TRANCODIFIER PM260 RS232 TO CD2 INTERFACE THIS UNIT CONVERS PROTOCOL RS232 TO “CD2” STANDARD SIGNALS RS232 CD2 PM244 CD2 TO RS232 INTERFACE THIS UNIT CONVERTS PROTOCOL “CD2” TO RS232 STANDARD SIGNALS RS232 CD2 PM565 ADP INTERFACE THIS UNIT CONVERTS PROTOCOL “AIRCAT 500” TO “HDLC” STANDARD SIGNAL AIRCAT 500 RS232 13 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 PM179 MULTIPLE DATA ACQUISITION AND RADIO TRASMISSION UNIT RACK UNIT FOR MULTIPLE PROVIDED MODEM INTERFACE AND RADIO LINK INTERNAL UPS AND POWER DISTRIBUTION PANEL FOR EXTERNAL SUBUNIT 220V IN 220 OUT 2KW 30” BACK-UP PM 179 ASSEMBLY PM181 MULTIMODEM SUB-UNIT PM181 MULTIMODEM RACK UNIT 8 MODEM 34 Kbit/sec. “SWITCHED LINE” 230V 200W POWER MULTIPLE LAMPS FOR ACTIVITY CONTROLS REAR CONNECTORS FOR ERGONOMIC INTERCONNECTION PM175 MULTISERIAL SWITCH / GATEWAY 16 + 16 RS232 INPUT LINE 1 LAN OUT SINGLE OR MULTIPLE LINE SWITCHING 3 UNITS 19” RACK MOUNTING FRONT PANEL ACCESS FOR CONNECTION/ONE CHECK AND JUMPER 220V 200W POWER 14 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 PM247 MULTISERIAL SWITCH 96 + 96 INPUT - 96 OUT 12 CARDS + 1 CONTROL MODULE REMOTE – LOCAL PROGRAMMING BY RS232 DATA LINE MODULAR CONSTRUCTION 19” RACK 220V 200W POWER 15 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 SSR TEST TRASPONDER Test system for SSR performance on-line contral Mode A,C,S level 3 flight ID 16 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 PM593 TEST TRANSPONDER Mesar proposes a system to verify and control the performances and the functionalities of the SSR (Secondary Surveillance Radars). The “Test Transponder” equipment can be installed in the vicinities of the airport and it supplies continuous information concerning the correct functionality of the SSR to the aim of the safety of the air traffic. The equipment is already predisposed for the new functionalities (Mode S) that will be utilised in short time under the disposition of the ICAO and Eurocontrol, International Agencies devoted to the Air Traffic Control for the rules and the safety of the national and international flights. The equipment is completely programmable and comes turnkey supplied provided of transmission systems and infrastructures in single or double configuration . The Test Transponder unit is an equipment for ATC (Air Traffic Control) systems that permits to on-line check the SSR functionality because, when installed in a known position, it responds to radar interrogations with the same massage format of an avionic transponder with user programmable replay codes. The unit has been designed with modular architecture and in compliance with ICAO requirements for mode 3/A, C and S (levels elementary 1-2 e level enhanced 3). The user can enable/disable the mode S funtionality, so the test transponder can simulate a target with identity code and quote user defined (if only mode A/C are enabled) or a target with mode S reply user defined (if mode S is enabled). 17 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 A replay delay is also applicable to place the simulated target in a specific position far away from the site of installation and the input/output levels can be adjusted by means of two programable attenuators. The test transponder can be managed from local, by means of a touch screen control panel, or from remote, by means of a redundant ethernet connection TCP/IP. Hereinafter the block diagram of the unit. 18 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 The unit can be installed in single or double redundant configuration, in order to obtain the requested reliability level. In redundant systems, the units can share the same antenna (partially redundant system), or every unit can be directly connected to its antenna (completely redundant system). In a partially redundant system, only one unit is normally active and the other one is a reserve that became active only in case of failure of the main test transponder. In the following figure a completely redundant system example is reported. The benefits of the completely redundant system (respect to partially one) are: Operative benefit - The spare unit is not a "cold unit" but, with an opportune delay time in the reply, it can be seen by the SSR as a second test unit, virtually displaced from the first TTU unit . Logistic benefit - The maintenance actions needed to replace an eventually broken unit don't stop the workability of the system. 19 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 SHELTER KIT FOR TEST TRANSPONDER INSTALLATION It is a relatively compact and lightweight shelter, purpose-made to accomodate all the system devices set and the technicians for the normal maintenance. It is easily to assemble it on a metal or cement base and the technical personnel can access into it by a door. The shelter is provided with a thermal insulation walls and an air conditioner system to preserve the internal temperature into the system operative temperature range . The shelter is provided mechanically and electrically preassembled except for the antenna's pole that will be positioned on the place. Four strong hooks placed on the roof make possible to easily transfer it to another place with a normal lift-up machine. The shelter can be dispatched with common terrestrial or marine means of transports. The shelter is available in two different versions: 2x2m and 2.5x2.5m both with 2.9m of height. 20 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 Equipment cabinet Rack standard 19” Antenna Housekeeping system Air conditioner system TTU Air conditioner system UPS Auxiliary system Housekeeping system It is an active and passive monitoring system to supervise the weather and security status of the installed system. It is composed of an anti-intrusion system that alert headquarter in case of any nongranted access or sabotage. The environmental control into the shelter is performed by a set of sensors to monitor constantly the temperature, humidity and presence of smoke. 21 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 Redundant Climatization In extreme conditions weather places, the thermal insulation walls of the shelter could be not enough to guarantee the optimal environmental conditions for the system. In this case, optionally, the shelter can be arranged to lodge a redundant air conditioner system. Rack Standard 19” or Mini Rack 19” Inside the shelter are present a set of 19" standard rack with depth range from 500mm to 800mm and 2105mm maximum height. Depending on the selected system (simple system or redundant system) the basic kit is provided with one or two 19" mini-racks as represented in the following figure. L 600, P500, H 736 mm Optionally, different sizes for the rack are available to fits particular requirements. The available racks are reported in the following table. Type Rack 19” Rack 19” Rack 19” Rack 19” Rack 19” Rack 19” Width(mm) 600 600 600 600 600 600 Depth(mm) 600 600 600 800 700 800 Height(mm) 1215 1702 1967 1967 2105 2105 All available racks are DIN - IEC - CEI standards compliant. 22 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 UPS In order to guarantee a protected, stable and continuous power supply, a UPS system is provided with the basic installation kit. The UPS is outfitted to operate with all common AC power network. Antenna The provided antenna is a flat panel type antenna with a 15dBi gain and +/- 12.5° main beam aperture. The directionality is required to avoid unwanted interrogations issued from the other SSR eventually present nearby. The antenna is equipped with an N-type connector, and preferentially must be used with RG8-type cable or equivalent. Different cable could be used too, but in this case the associated power loss must be carefully considered. Discharge devices To complete the kits, various optionally protection devices are available: • • Current discharger for the antenna to redirect the high energy loads of the lightnings on the RF lines. Voltage discharger to guarantee the dielectric insulation of the devices installed inside the shelter. 23 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 PM672 TRANSPONDER with TARGET GENERATOR L’assieme PM672 è un TRANSPONDER, disponibile in banda S, L, C, X ed utilizzabile, in fase di testing del radar primario, per simulare la presenza di un target posto ad una specifica distanza dal radar, in posizione fissa o in movimento rispetto ad esso. Nello specifico, l’impulso radar ricevuto viene opportunamente elaborato (filtrato, amplificato, eventualmente ritardato temporalmente e shiftato in frequenza) e successivamente ritrasmesso verso il radar. Tramite l’utilizzo di opportune linee di ritardo in fibra ottica, è possibile introdurre sull’eco di ritorno un delay (settabile a step di 20µsec nel range 20÷140µsec) per fare in modo che il target simulato venga visto dal radar shiftato in distanza, ovviando così alle problematiche che l’utilizzo dell’STC (Sensitivity Time Control) compoporterebbe per installazioni del transponder fatte a distanze troppo ravvicinate rispetto al radar. È possibile introdurre sull’eco di ritorno uno shift in frequenza (selezionabile nel range 0.2÷200kHz a step di 1Hz) per fare in modo che l’eco di ritorno venga visto, per effetto doppler, come un oggetto in movimento ad una specifica velocità. Inoltre è possibile agire sui livelli di potenza ricevuta e ritrasmessa settando opportunamente due attenuatori programmabili inseriti sulle linee di ricezione e trasmissione, rispettivamente. 24 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 Tipici utilizzi del transponder sono l’allineamento del radar primario e la determinazione del pattern d’antenna. Con riferimento al diagramma a blocchi riportato di sopra, tutta l’elaborazione del segnale radar è effettuata nella sezione RF con la gestione della logica di controllo. Il PC costituisce l’interfaccia tra la logica di controllo ed il monitor LCD/touch screen presente sul pannello frontale ed utilizzato come interfaccia utente, per eseguire le operazioni di settaggio e controllo. 25 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 PM870 S BAND MTI MARKER Il PM870 è un MTI MARKER operante in banda S ed utilizzabile per effettuare l’allineamento del radar primario. Durante il suo funzionamento operativo, l’MTI Marker ritrasmette l’impulso ricevuto dal radar primario introducendo su di esso un effetto doppler, per fare in modo che l’eco di ritorno passi attraverso il filtro MTI del radar e si presenti sul monitor PPI del controllore come un riferimento stazionario. L’MTI Marker, nella sua configurazione standard, si compone di tre parti principali: 1. Antenna 2. Riflettore attivo 3. Alimentatore AC/DC L’antenna è un’antenna a pannello a polarizzazione lineare che viene accorpata al riflettore attivo in un’unica soluzione meccanica, per garantire ingombri ridotti e maggiore facilità di installazione. Per avere la possibilità di lavorare sia in polarizzazione orizzontale che verticale il montaggio dell’antenna sul riflettore è invariante per rotazioni di 90°. Il Riflettore attivo è dotato (dal lato opposto rispetto all’antenna) di appositi supporti per montaggio su palo e, nella sua configurazione tipica, viene alimentato in continua (+12VDC) tramite un alimentatore AC/DC da installazione indoor. 26 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 Opzionalmente il riflettore attivo può essere alimentato con batteria standard da 12VDC per autoveicoli oppure a pannelli solari. Sono disponibili due diverse versioni di riflettore attivo che differiscono tra loro per la possibilità di introdurre o meno una amplificazione ed un delay sull’eco di ritorno. Nella versione più semplice (non amplificata e senza delay) ed economica, il riflettore attivo si presenta come nello schema a blocchi riportato nella figura seguente. Dal punto di vista funzionale, l’impulso radar ricevuto viene rivelato per determinarne la durata temporale e per consentire la sincronizzazione dello sfasamento doppler con la PRF del radar. In particolare, lo sfasamento introdotto è tale da impostare la frequenza doppler ad un valore pari a PRF/2. Al variare della PRF, la frequenza doppler viene automaticamente riadattata al nuovo valore di PRF, evitando così ogni intervento manuale sul dispositivo durante il suo funzionamento operativo. L’elaborazione sulla fase viene fatta sul solo impulso “corto” (durata tipica di 1÷10µsec) per fare in modo che l’impulso lungo, originando un eco di ritorno con fase sempre costante, venga visto dal radar come un bersaglio fisso e quindi cancellato. 27 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 L’altra tipologia di riflettore attivo, consente di inserire una amplificazione ed un delay sull’eco di ritorno. Dal punto di vista funzionale, l’impulso radar ricevuto, dopo essere stato opportunamente filtrato ed amplificato nel front-end, viene rivelato ed elaborato per determinarne la durata temporale: anche in questo caso, un impulso “corto” (durata tipica di 1÷10µsec) viene processato e ritrasmesso al radar mentre un impulso “lungo” viene soppresso (commutando l’antenna su un carico a 50Ohm). Il processamento dell’impulso corto consiste nell’introdurre uno sfasamento doppler che, come nel caso precedente, si sincronizza automaticamente con la PRF del radar, ed un delay. Il delay viene ottenuto con l’utilizzo di un link ottico a modulazione diretta e di un avvolgimento in fibra ottica di opportuna lunghezza (quella corrispondente al ritardo desiderato). La possibilità di poter avere un target shiftato in distanza (rispetto alla posizione fisica di installazione dell’apparato) e di maggiore intensità (rispetto al caso precedente), predilige 28 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 la scelta verso questa tipologia di riflettore in tutte le applicazioni in cui sia richiesta ampia versatilità nella determinazione del sito di installazione. Per entrambe le tipologie di MTI Marker, è possibile effettuare il set up ed il monitoraggio sul corretto funzionamento tramite un apposito pannello di controllo, accessibile da uno sportello a tenuta posto nel lato inferiore del riflettore attivo. 29 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 PM1074 X BAND MTI MARKER Il PM1074 è un MTI MARKER operante in banda X ed utilizzabile per effettuare l’allineamento del radar primario. Analogamente al PM870 è anch’esso costituito da un’antenna ed un riflettore attivo che vengono accorpati in un’unica soluzione meccanica per garantire ingombri ridotti e maggiore facilità di installazione. In questo caso l’antenna è un paraboloide a polarizzazione circolare con la possibilità di essere configurata per lavorare sia con polarizzazione destrorsa che sinistrorsa. Per quanto riguarda la modalità di installazione, il sistema di alimentazione ed il principio di funzionamento valgono le stesse considerazioni fatte per il caso del PM870. In particolare, anche per questo prodotto sono disponibili due versioni distinte di riflettore attivo che differiscono tra loro per la possibilità di avere o meno un guadagno ed un ritardo sull’eco ritrasmesso, con diverso impatto sulla versatilità di installazione. Anche per questo apparato, da un apposito sportello a tenuta allocato sul lato inferiore, è possibile accedere ad un pannello di controllo per eseguire le operazioni di configurazione e di monitoraggio. 30 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 PM1102 ADS-B GROUND STATION Il PM1102 è una stazione di terra in grado di ricevere i dati trasmessi dai velivoli che si trovano nella propria area di sorveglianza, elaborarli e codificarli in modo opportuno per trasferirli al centro di controllo ATC (Air Traffic Control). Le informazioni ricevute, relative alla posizione dell’aeromobile, alla sua quota ed al suo identificativo, vengono raccolte nel centro ATC, fuse eventualmente con altre informazioni (provenienti ad es. da altri radar secondari) e sfruttate per: migliorare l’ affidabilità nei servizi di ATC; estendere il controllo del traffico aereo in zone prive di copertura radar; controllare i veicoli in movimento a terra, nelle zone aeroportuali. Più nello specifico, le ground stations si inquadrano all’interno di un contesto integrato di ricezione che, nella sua configurazione tipica, si compone delle seguenti parti principali: Una o più stazioni riceventi (AGS - ADS-B Ground Station) Un sistema di elaborazione (ARS - ADS-B Reporting System) Un sistema di gestione (AMS - ADS-B Management System) Una unità di registrazione (REC - Recording) 31 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 I dati ricevuti dalle AGS vengono dapprima elaborati localmente per demodulare il contenuto informativo, codificarlo in formato Asterix cat.21 ed inviarlo, tramite connessione ethernet ridondata, verso il centro di elaborazione (ARS). Il centro di elaborazione, anch’esso ridondato, seleziona (con opportuno criterio di scelta) i pacchetti provenienti dai due canali di ingresso per estrapolare un unico flusso dati in uscita da instradare (in modalità ridondata) verso il Radar Data Processor (non riportato nella figura di sopra). I dati che transitano sulle due LAN sono accessibili anche dal Management System (che svolge le funzionalità di monitor tecnico e di presentazione dei dati), oltre che da una unità di registrazione (REC). Dal punto di vista costruttivo, gli apparati relativi all’ARS ed al Recording vengono realizzati in rack standard da 19” e posizionati in armadi, l’unità AMS è un server di tipo tower, posizionato nei pressi della postazione di supervisione. Per quanto riguarda le AGS, si possono avere sia soluzioni indoor (rack standard da 19”) che outdoor (in cui tutta l’elettronica è contenuta all’interno di un box a tenuta stagna). 32 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 Nell’ottica di migliorare l’affidabilità del sistema, la stazione ricevente è completamente ridondata. Ciascun canale ricevente utilizza un’antenna omnidirezionale ed un ricevitore a demodulazione di inviluppo, per rivelare gli squitter emessi sulla portante di 1090MHz e fornire un segnale video in uscita, che viene successivamente elaborato dalla sezione digitale (scheda processing e single board computer). L’elaboratore digitale effettua la decodifica dei messaggi ADS-B ricevuti e la loro successiva ricodifica nel formato “Asterix cat.21” (richiesto per l’invio dei dati al centro ATC). Inoltre, gestisce lo scambio di messaggi di monitoraggio e controllo utilizzando il protocollo SNMP (Simple Network Management Protocol). Il flusso dati (protocollo Asterix) ed i messaggi di gestione e controllo (protocollo SNMP) vengono inviati su connessione LAN, ridondata per ciascuno dei due canali riceventi. 33 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 Ciascuna stazione contiene un trasmettitore di test che, ogni qualvolta venga richiesto dal sistema di gestione (AMS), emette, sulla portante di 1090MHz, un segnale noto che viene ricevuto e decodificato da entrambi i canali riceventi: dalla comparazione del segnale video demodulato con il segnale di riferimento noto, il sistema è in grado di verificare il corretto funzionamento di ciascuna delle due catene riceventi. Inoltre, le Ground Stations integrano un ricevitore GPS (anch’esso ridondato) per consentire di effettuare le operazioni di: correzione dei dati di posizione; sincronizzazione dell’orario. Il sistema stazione-antenna definisce il centro di un area che si estende fino al limite di copertura del sistema, oltre il quale non è possibile ottenere la decodifica affidabile dei segnali provenienti dagli aeromobili. Aumentando il numero delle stazioni si ottiene un sistema più affidabile e preciso mentre distribuendo più stazioni sul territorio si aumenta anche la copertura del sistema. 34 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 RADAR EXTRACTOR & TRACKING SYSTEM The Radar Extractor and Tracking System (RETS) processing performs by the following main functions: Clutter Map Processing and Constant False Alarm Rate (CFAR) Threshold Generation Plot Extraction Track While Scan (TWS) Hereinafter is shown a block diagram with the main functional blocks of the RETS: 35 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 The RETS performs a clutter adaptive processing in order to determine the constant false alarm rate threshold for target detection (hit) in any weather conditions . The RETS performs processing of the radar digital raw video based on CFAR and Clutter Map techniques in order to calculate, for each radar cell over all covered zones, appropriate detection threshold with 10-6 constant false alarm rate. CFAR and Clutter Map algorithms are designed to mitigate masked zones and reflections effects generated by existing buildings. In case of absence of analog video data the RETS stops its functionality by providing an alarm message to the operator and by freezing the situational map (thresholds, extraction parameters, ….). The Plot Extraction function makes RETS capable to generate the plot object starting from a cluster of target hits. The Plot Extractor has been designed in order to associate a radar plot object for each moving or fixed target (i.e. aircraft) onto all airport covered areas. Separate cluster of hits of two near targets are processed as two separate target plots and not fused. The Plot Extractor is able to manage very large targets (like a big aircraft) as well as very small targets (vehicles) onto covered zones. One large target detected as more than one cluster of hits (target splitting effects) is processed as one target The Plot Object is basically represented by the geometric/gravity centre coordinates of the associated target’s hits cluster. The plot coordinates are corrected by taking into account the antenna height above the ground. The Plot Extractor is able to inhibit plots generation in certain required zones according to the Plot Inhibition Map (PIM). This functionality, useful for instance in case of radar signal reflections, is selectable and adjustable in off-line mode by dedicated Plot Extractor Maintenance tool in Maintenance Technical Display (MTD). The Track While Scan function has the task to generate the Target Report starting from a target plot object. The algorithms are based on robust Kalman filtering to avoid track loss and false target report. The TWS provides Target Report of all fixed and moving detected/extracted targets inside airport covered zones (Apron area and Movement area: taxiways and runways). The RETS transmits data (tracks and plots) by using Ethernet 1000 Base T LAN with TCP/IP protocol. The RETS provides as output Target Reports (tracks and plots data) according to EUROCONTROL ASTERIX CAT10 standard protocol format. 36 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 The setup of RETS functionalities is performed by acting on a dedicated Maintenance Technical Display (MTD) designed basically for system maintenance purposes and performances evaluation. Through HMI is available the presentation of the following data: Airport Topographic Map with Apron and movement areas Raw radar video (PPI with range and azimuth information) by using at least 8 bit colours palette hits plots tracks The HMI presents the following RETS status information: BITE ON (OFF) (the RETS is running with video test) RETS RUNNING OK (NO OK) RETS OFF LINE The HMI presents all RETS alarms like for instance: analog radar video missing ASTERIX LAN disconnected too many plots too many targets The RETS is based on a standard 19” industrial rack PC with LINUX Professional platform,. The RETS PC is powered by standard 220/230 V 50 Hz. 37 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 AIR CONDITIONING – COOLING CONTROL SYSTEMS MAIN CONTROL SYSTEM mod. PM533 Main Control System designed to drive the Blower Shutters PM 510 to be used for A/C systems and Cooling Systems. BLOWER SHUTTER mod. PM510 The motors are connected to relevant mechanical Valves and drive by the Main Control unit PM 533. Air flow is regulated according to pre-setted parameters and temperature values. 38 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 HEATING SYSTEM mod. PM806-807 The preheating battery is constituted from a container which dimensions are adapted to being fixed to wall, inside of a premises, in correspondence of the openings of income of the air of ventilation of a conditioning unit. The container will concur the passage of the air and will lodge the heating elements necessary (resistors) to carry out the assigned function. 39 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 TEMPERATURE CONTROLLER mod. PM 750 Designed to measure and display the ambient temperature up to a distance of 50mt from the headquarter. The use is ideal in housekeeping system to monitor constantly the temperature in the system room (or shelter, etc.). Temperature Sensor is powered by the industrial standard 4-20mA standard to minimize the coupled noise. The user can set the alarm/prealarm threshold in order to start visive and acoustic signalling if the temperature is out of range. Relay contacts are available in order to remote the alarms. The unit can be programmed via serial port and optionally with LAN. 40 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 RADAR SIGNAL GENERATORS PM 498 PM498 DINAMIC MODULAR RADAR SIMULATOR - - - EUROCARD SIZE RADAR SIMULATION WITH: - VIDEO PULSE WIDTH 0,5÷100ns - VIDEO DISTANCE 1÷250 miles - RPM 1 TURN EACH 4÷12 sec. - PRF 250÷1000Hz CHARACTERISTICS: - 4 VIDEO SIGNAL - 1 TRIGGER - 1 ACP SERIAL 12 -14 -16bit - 1 NORD RS422 LCD DISPLAY FOR EASY SET-UP AND CONTROL VIDEO & TRIGGER COAX 5V 75 ohm ACP & NORD DIFFER RS422 POWER 15Vdc≤1A The PM498 is a programmable generator of Radar Video Signals, to be integrated in an appropriate slot of MINI RDU Mod. PM292. The generator emulates four VIDEO and its relevant TRIGGER, ACP and NORTH. The PM498 is fully programmable through a menu interface by means of the controls located on the front panel. The PM498 is able to emulate an immense range of radar scenes generating various types of marks corresponding to search radars, approach radars, Tracking radars etc. The set of signals and programmable functions available render the PM498 an able instrument to optimize the procedures of installation, testing, setting up and maintenance of Radar Display Systems 41 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 MAIN FUNCTIONALITIES of the PM498 • Emulation of Signals ACP, NORTH, TRIGGER, VIDEO • 4 VIDEO Signals independently configurable • Trigger with parametric PRF from 250 to 1500 Hz • Emulation of trigger of STAGGERED type • Configurable ACP, 12 or 14 bit • Configurable Antenna rotation Period. • Emulation of video RING type, fixed target, target in motion • Possibility of sectorization of rings • Programmable distance of the targets from 1 to 250 NM • Configurable angle-shot of the targets to steps of one degree • 10 memories for the storage of the scenes 42 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 RACK MOUNTED RADAR SIMULATOR PM363 - FRONT PANEL DISPLAY FRONT PANEL SWITCH SIMULATION OF FLIGHT “ROUND WITH 4 PRESET DISTANCES” CHARACTERISTICS: - 2 VIDEO SIGNAL (75hom) - 1 TRIGGER (75hom) - 1 ACP (PARALLEL 14 bit) RS422 - 1 NORD RS422 Questi apparati trovano applicazione nei test e nella simulazione di scenari radar, i particolare : - Generare segnali radar per verificare la funzionalità ti tutta o parte della struttura radar aeroportuale - Verificare la funzionalità di una parte (per es. i terminali video) quando il resto del sistema è in operativo. - Generare carichi anomali virtuali di traffico aereo per verificare le prestazioni del sistema in caso di “sovraccarico” – “troppi aerei da controllare simultaneamente”. - Generare un segnale radar “anomalo” per verificare come le apparecchiature e gli operatori reagiscono di fronte ad un problema. 43 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 DYNAMIC RADAR EMULATOR PM614 & PM615 PM614 and PM615 The PM614 is a module that adds to the functionalities of the PM498 a output driver interface, in this case is possible to use the equipment as stand-alone generator based on rack 19 ' '. as all the MESAR series of Fiber optic systems for radar data transmission. In alternative the generator PM614 can be lodged inside of mini-rack as portable instrument inclusive of battery package. Associated to the portable mini-rack MESAR PM615, generator PM614 on hand allows to have a most useful instrument, portable and easy usable on the field installation, testing, setting up and maintenance of Radar Display Systems 44 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 MAIN FUNCTIONALITIES of GENERATOR PM614 The PM614 includes all the functionalities of the PM498, and moreover: • Output driver for unbalanced signals (on BNC) and balanced signals RS422 on multipolar connectors type “D” on the front panel • 4 Video signals, with relevant Trigger, North, ACCP. • Parallel ACP output 12/14 bit • Completely independent and transportable, with rechargeable batteries if associated to minirack PM615 • Rack 19 ' '(32TE) MAIN FUNCTIONALITIES of MINIRACK PM615 • Rechargeable batteries package • Quick Built –in Battery Charger • Possibility of lodging of modules of MESAR series like video splitter, RS422 splitter, emitters and receivers on fiber optic, etc (8TE available with Inserted PM614) PORTABLE MINIRACK mod. PM 615 45 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 Example of Radar Signal displayed Fixed Target Moving Target Full Scan Sectorized Ring Interface Menu Display 46 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 Y COUPLER mod. PM861 Y COUPLER mod. PM681 Description: Redundant serial interface router with capability to route an input signal to dual output interface (the messages are doubled in order to achieve the maximum exchange reliability). The unit can be SW reconfigurable as Ethernet-to-Serial Gateway maintaining the redundant functions or perform a multihead gateway. Benefits: • Gateway HDLC-IEEE802.3 • HDLC I/F doubler • HDLC Hub-Switch • IEEE 802.3 Hub/Switch 47 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 GPS mod. PM803 TIME CODE GENERATOR GPS Network Time Server mod. PM803 Description: Designed for network synchronization, the unit will act as NTP server on standard LAN systems. For single unit synchronization it is possible to use a standard RS232 interface. Standard interface protocols are used, the NMEA 0183 for input serial interface and NTP protocol for LAN, simplifying and minimizing the engineering costs associated with integrating task. The output serial interface can be user tailored via SW. Programmed with serial port, USB or LAN. Optionally the unit is able to transmit the geographical position. 48 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 ANTENNA MOTOR DRIVE UNIT PM318 - amdu ANTENNA SOFT - START - DOUBLE MOTOR DOUBLE STARTER REMOTE CONTROL EMI FILTER ELETTRONIC UNIT FOR ANTENNA’S SOFT START THE UNIT DRIVES TWO ELETTRIC MOTOR BY TWO SOFT STARTER IN ORDER TO ASSURE RELIABILITY. THE UNIT OPERATES IN LOCAL – REMOTE MODE WITH DIAGNOSTIC PANEL A DOUBLE EMI FILTER PROTECT THE UNIT AND LINE FROM NOISE. MOTOR CONTROL SYSTEM PM 775 – PM809 3Ø INVERTER FOR MOTOR SPEED CONTROL 3KW TRIPICAL APPLICATION - SMAL ANTENA ROTATION - COOLING CONTROL - FAN CONTROLS INPUT 380 ÷ 440V 3Ø 50÷60Hz OUTPUT 0 - 400V 3Ø 0 – 60Hz SINUSOIDAL OUTPUT WAVE EMI FILTRED 3kw pm775 10kw pm809 49 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 PM207 SAFETY SWITCH FOR THE SAFETY OF THE OPERATORS - USED AS SECURITY BLOCK OF UNITS THAT COULD MOVE OR TURN USED FOR MOTORS UP TO 40Kw CHARACTERISTICS: - 4 CONTACTS - 660Vac MAX - 63A FOR CONTACT - 380V 3Ø 50Hz USED TO PUT DOWN NETWORK ARMONICS THE UNIT ELIMINATE DIFFERENTIAL AND COMMON MODE NOISE USED TO PREVENT NETWORK TROUBLES PROPAGATE TO THE USES USES TO PREVENT THAT USERS NOISE PROPAGATE TO THE OTHERS INTERNAL FAN COOLING DIGITAL INSTRUMENTS FOR VOLTAGE – CURRENT – POWER COS Φ AND FREQUENCY MEASURAMENTS 50 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 FIBER OPTIC 51 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 OPTICAL FIBER MODEM mod. PM645 THE TTU IS BASED ON A MODULAR HW ARCHITECTURE USED TO MEET THE DIFFERENT ICAO REQUIREMENTS AS MODE A OR C OR S WITH DIFFERENT LEVELS.THE UNITS CAN BE INSTALLED IN SINGLE OR DOUBLE OR TRIPLE CONFIGURATION IN ORDER TO ACHIEVE THE HIGHEST RELIABILITY LEVEL. IN MULTIPLE INSTALLATION ALL THE UNITS COULD SHARE THE SAME ANTENNA OR EACH UNIT CAN HAVE THE OWN ONE THE TTU IS BASED ON A MODULAR HW ARCHITECTURE USED TO MEET THE DIFFERENT ICAO REQUIREMENTS AS MODE A OR C OR S WITH DIFFERENT LEVELS.THE UNITS CAN BE INSTALLED IN SINGLE OR DOUBLE OR TRIPLE CONFIGURATION IN ORDER TO ACHIEVE THE HIGHEST RELIABILITY LEVEL. IN MULTIPLE INSTALLATION ALL THE UNITS COULD SHARE THE SAME ANTENNA OR EACH UNIT CAN HAVE THE OWN ONE 52 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 FIBER OPTIC DATA TRANSCEIVER SYSTEMS MESAR fiber optic systems are based on totally modular configurations, that permit easy application-specific adaptation, easy system improvements, and easy failure fixing. Optical links with length of over 20km without the use of intermediate amplifications are made possible by the single-mode high-power laser transmitters used. There are modules for many signal typologies, that can live together on the same mainframe that furnishes the power supplies, optionally redundant, and the data bus for the multiplexed modules. Redundant data paths are also made possible by modular data switching systems. 53 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 8 DIGITAL CHANNEL MODULES PM310 (COAX TX) & PM311 (COAX RX) PM322 (RS422 TX) & PM323 (RS422 RX) PM310, PM311, PM322 and PM323 modules are used to realize a transmission system on optical fibre of 8 digital signals (ON-OFF) with unbalanced coaxial interface (0 … 5V) or RS422 differential interface. 8 fast digital signals transmission by a single optical fibre RS422 or COAX input and output interface COAX - RS422 mixed combination possibility 50ns sampling time 54 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 PM271 RS232 MODULES PM271 modules emulate a DCE RS232 peripheral and implement the bi-directional asynchronous or synchronous transmission-reception of serial data and control signals, typical of RS232 standard (DTR, RTS, CTS, DSR, clock for synchronous communications). Moreover, at the output of each module PM271, an internally generated clock signal with jumper configurable frequency up to115.2kb/s is also available. As many as 16 RS232 channels can be implemented by a single duplex fiber connection using the PM272 MASTER module. PM276 & PM277 TELEPHONIC MODULES PM276 and PM277 modules permit to extend a telephone line with full DTMF and decadic composing support. PM276 module provides interface for the phone set and the PM277 module provides interface for the provider line. Line to Phone or Phone to Phone connection are possible. As many as 16 phone channels can be implemented by a single duplex fiber connection using the PM272 MASTER module. PM371 BALANCED AUDIO WITH T/L MODULE PM371 modules permit to extend a differential audio line and a talk/listen signal. It can be useful to interface radio devices to remote offices. As many as 16 audio channels can be implemented by a single duplex fiber connection using the PM272 MASTER module. 55 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 PM304 & PM305 16 DISCRETE CHANNEL MODULES PM304 & PM305 allow to recreate on the PM304 module the open-closed state of 16 contacts according to the configuration of 16 contacts applied to the PM305 module inputs. As many as 16 channels each with 16 contacts can be implemented by a single duplex fiber connection using the PM272 MASTER module. PM272 MASTER MODULE The PM272 MASTER module is used to multiplex on a single duplex optical link as many as 16 modules among the ones described above that support the multiplexing function. Other modules are available, like ethernet media converters, and other signal typologies can be transceived on request. Contact MESAR sales manager for more information. 56 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 BUFFER/SPLITTER MODULES Coax analog splitter modules (PM269) and 8 channel RS422 splitter modules (PM488) are available to buffer one input to four outputs. PM269 COAX VIDEO BUFFER Bandwidth: DC to 10MHz Input and output dynamic: -1V … 5V @ 75Ω load Jumper configurable 75Ω input termination PM488 RS422 BUFFER Repetition on the 4 outputs of a series of 8 differential signals Jumper configurable input terminations SWITCHING MODULES Switching modules for various typologies of signals are available to allow the implementation of redundant data links, with automatic commutation logic that can automatically switch to the secondary link in case of failure of the primary link. Remote control of the switching state is also possible. 57 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 PM270 MAINFRAME The mainframe integrates the following functions: Mechanical container Single or dual supply system Cooling system BITE and remote signals system Electrical data bus It is endowed with sliding runners which allow to insert modules from the front. The mechanical dimensions are for standard 19’’ rack mounting. ASSY FAILURE LED CABLE AND AIR PASSING FOR VENTILATION PM279 POWER SUPPLY The PM279 power supply receives AC energy from the transformers (with voltage selector) placed inside the mainframe. The module converts AC into DC, filters it, and provides optical and electrical status information. Two PM279 can be placed inside a PM270 mainframe to implement redundand power supply 58 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 EXAMPLE OF APPLICATION PHONES ALARMS PM272 PM305 2 F. O. PM276 PM271 PM304 UP TO 40km PM277 PM272 RS232 DEVICE ALARMS SURVEILLANCE RS232 DEVICE PHONE LINES 59 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 EXAMPLE OF APPLICATION PM274 PM275 60 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 PM206 and PM208 MODULES 50/125 MULTIMODE FIBER DATA LINK The PM206 module transmits five RS422 signals to the fibers and receives two signal from the fibers, repeating them on two RS422 outputs . The PM208 module is the complementary module for the PM206. It receives from the fibers five digital signals, repeating them on five RS422 outputs, and transmits two RS422 digital signals to the fibers. 5 MHz typical bit rate propagation time ≈100ns + fiber path 1.5km 50/125 fiber link typical length Jumper configurable RS422 input termination MIL STD conformity RS422 CH1 CH1 CH2 CH2 CH3 CH3 CH4 CH4 CH5 CH5 CH6 PM206 PM208 CH7 RS422 CH6 CH7 7 x multimode fibers 61 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 POWER SYSTEMS - UNINTERRUPTABLE POWER SYSTEMS UPS with 5 levels of redundancy - AC STABILISER - POWER FACTOR CORRECTORS - DIESEL GENERATORS - NETWORK FILTERS AGAINST NOISES & INTERFERENCES 62 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 UPS – UNINTERRUPTABLE POWER SYSTEM UNINTERRUPTABLE POWER SYSTEM FOR SAFETY AND SIGNALLING (RFI IS732 Spec.) The ON-LINE power system assures V/F stabilized feeding voltage to the loads, in several input conditions, The unit is made up by the following sub-units: a) AC section n°1 and n°2 made up by: • rectifier • Inverter • static switch b) Emergency AC section • isolating transformer • stabilizer • static switch c) DC Section d) N°2 batteries e) PFC section f) controller section • sectioning and protections • logic and diagnostics g) Generator • Diesel engine • Generator • Generator logic • Mains/generator switching unit 63 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 The system works ONLINE, normally the loads are feed through AC section 1; The AC section 2 is the swappable hot-stand-by. In case of failure or an overload the loads are switched to the emergency ac section Accumulators are always online, they feed the loads in the mean time between the mains failure and the end of generator startup phase. In case of generator failure the batteries feed the loads until they are discharged. The generator is normal off, it substitutes the ac mains only in case of failure or if the mains is out of tolerance. The DC loads are feed trough DC section Here below there is the list of the available version of power system POTENZE NOMINALI DEI MODULI BASE SUB UNIT NOMINAL POWER ALTRI DATI OTHER CHARACTERISTICS SISTEMA INTEGRATO UNINTERRUPTABLE POWER SYSTEM (400V 3Ø+N) Rami Corrente Alternata AC output Rami Corrente Continua DC output Sezione Rifasamento PFC section Gruppo Elettrogeno Generator Capacità Batteria Battery capacity Elementi Batteria N° elements Corrente Massima Raddrizzatore Rectifier max current Rendimento Singolo Ramo Raddr/Inverter Single inverter efficiency (kVA) 10 15 20 30 40 50 60 75 100 140 180 225 300 360 (kVA) 10 15 20 30 40 50 60 75 100 140 180 225 300 360 (kW) 5 5 5 10 10 10 10 10 10 10 10 10 10 10 (kVAR) 15 22 30 44 57 69 84 106 137 193 252 308 395 492 (kVA) 15 25 30 50 60 75 100 120 150 200 270 340 450 550 (Ah) 50 75 100 150 200 250 300 400 500 580 800 1000 1160 1600 N. 120 120 120 120 120 120 120 120 120 156 156 156 156 156 (A) 55 80 110 160 200 250 290 380 500 540 700 850 1100 1360 (η) ≥80 ≥80 ≥80 ≥80 ≥80 ≥85 ≥85 ≥85 ≥85 ≥85 ≥88 ≥88 ≥88 ≥88 64 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 POWER FACTOR CORRECTOR / PFC PFC section is made up by an ACTIVE FILTER working by compensation,: the active filter injects on the line the same harmonics generated by loads but with the opposite sign, this allows to reduce the rejected harmonics to a value near zero. To ensure a good power factor correction the unit generates three sinusoidal current, these currents are squared and their amplitudes depends on loads reactive currents. The section is divided into two sub-sections, a computer unit that reads continuously the load current and determinates the respective contents of harmonic and reactive currents, and a power section that injects the pre-determined harmonic currents with opposite sign. The power section is made up by an impressed voltage inverter, regulated by current PWM The PFC section main features are: ACTIVE OPERATION: The PFC section arranges to real harmonic and reactive situations in real time. The arrangement to current load amplitude variation are very fast, it takes at maximum two mains frequency cycles, so the harmonic attenuation is valid in variable load conditions too. CORRECTION ACTIONS The PFC section generates reactive currents to compensate the reactive power consumption, so the power factor is always on range (cosf=0.95) NOISE PROOF Possible harmonic currents rejected from close users doesn’t affect the PFC section, because the unit doesn’t read them. Possible waveform distortions doesn’t affect the PFC sections 65 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 NO RESONANCE Due to the PFC section technology it is impossible to have oscillations NO CONSUMPTION The absorbed active power is limited to power section loss (inverter, inductor, cables) The PFC section generates only reactive and harmonic currents with no significative energy exchange with AC mains EASY DISCONNECTION In case of failure or maintenance the PFC section can be easily disconnected by means of its main switch, obviously without interruption for the loads AC STABILIZER SECTION This section stabilizes the three phases output voltage to 400Vac ±2% for an input variation of ±20% In case of one AC section has a failure this section feeds the no break bus, in case of AC mains failure the generator feeds the AC stabilizer section The section is connected in parallel to AC mains. The connection is made up by injection transformer: with this solution the stabilizer absorbs only the power needed to stabilize output voltage, with great advantages on sizes, weight and efficiency The parallel connection allows an easy service and maintenance, by-pass is automatic and doesn‘t affect the loads Output voltage regulation is made by a back-back configuration double converter. 66 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 NETWORK FILTER PM427 HARMONIC FILTER - 20KW 380V 3Ø 50Hz USED TO PUT DOWN NETWORK ARMONICS THE UNIT ELIMINATE DIFFERENTIAL AND COMMON MODE NOISE USED TO PREVENT NETWORK TROUBLES PROPAGATE TO THE USES USES TO PREVENT THAT USERS NOISE PROPAGATE TO THE OTHERS INTERNAL FAN COOLING DIGITAL INSTRUMENTS FOR VOLTAGE – CURRENT – POWER COS Φ AND FREQUENCY MEASURAMENTS 67 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 LINDY - PM788 LAN REMOTE CONTROLLED POWER DISTRIBUTION 68 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 MAINTENANCE AND LOGISTICS MESAR S.r.l. with operational centre and premises in Tivoli was born in 1998 on the initiative of Mr Faggioni Fabrizio and professional men with many years of experience in the field of ATC and Radar systems for military and civil application Initially they specialized in producing Power Systems for railways vehicles and rolling stock, then they extended, with confirmed success, their experiences in the fields of turn key project for ATC and Airport Management Systems. Currently MESAR S.r.l. operates, but not exclusively, in the field of the production of Electronics products and is organized in order to develop, to plan and to construct of any kind of high technology equipment . MESAR S.r.l. operates also in the field of the maintenance, upgrading, preparation and construction of particulars used for ATC Systems and Airports for the national and international customers as well. MESAR S.r.l. turnkey projects satisfy the requirements of the biggest company like SELEX Sistemi Integrati, ENAV (Italian Civil Aviation), Italian Air Force, Indian Air Force, others Ministries of Defence in Europe and in Asia. MESAR S.r.l. is always sensible towards the new market necessities and constantly determined to improve its quality and technology level with a continual and interactive partnership established with other Italian Companies and the Customers themselves. 69 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 70 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 71 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 72 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 73 Mesar s.r.l. Via dei Canneti,5-Pontelucano info@mesar.it tel. +39.0774.32.65.28 / 32.65.16 COMPANY PROFILE MESAR S.r.l., estabilished in 1986, works in the field of the design and manufacturing of electronic equipments, in power conversion, data transmission and integrate supply fields. Our products find applications both in the terrestrial field, naval, avionic and railway, both civil and military versions. Technologies are highly innovative, they come from collaborations with research institutes, universities and international companies. Ing. FAGGIONI, member of the committee IEC and CENELEC for the standardization of the products in power supply area. Mesar is composed of experts coming from well know Companies as Contraves, Elettronica, Mes, Selenia, Pulsar etc., with great experience in the field of the scientific search and development. The company is located in an industrial area of 3000m2, close to the National Road Tiburtina, nearby Tivoli and Villa Adriana. MESAR operates since 1997 in compliance with ISO 9001 - 2000 Certified by the CERMET 74
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